[Mike S]

Winter project is to make the 67 more street friendly. My 10.00 index class requires mufflers. I have been running a 3.5" X pipe and flow master FX mufflers (straight thru) dumped at the axel. It is rather loud on the street. When I start the car in the garage wife hears it in the house 200' away. The drone inside the car is extreme.
I decided to add 3" tailpipes with resonators. I made 3.5" to 3" cutouts after the mufflers. Also I made divertors to direct the exhaust to the tail pipes when cutout are capped. Only thing I couldn't find in stainless was the cutout caps so made them out of 1/4" ss plate.
Car with the tailpipes is 50% quieter. You can actually talk in the car. No louder than my camaro street car. Neighbors will love it.
As soon as the track opens I will do back to back testing with and without tailpipes.